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Bitvote混合共识,打破垄断,防止分叉
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Topic: Bitvote混合共识,打破垄断,防止分叉 (Read 120 times)
saitou1696
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Bitvote混合共识,打破垄断,防止分叉
January 19, 2018, 01:47:20 PM
#1
目前在传统行业领域存在寡头垄断,垄断带来了风险和问题,而区块链的去中心化理论正是在这种背景下应运而生的,因而区块链的发展有广阔的应用前景。
行业中的寡头垄断随处可见,比如我们熟悉的微软、谷歌,垄断的后果就是,价格会越来越高,出现很多不平等条约,进而带来新一轮的垄断,无法激发创造性,行业难以有效发展。
目前区块链的主流共识机制有PoW,PoS,DPoS 和PoW+PoS。Bitvote团队根据对比分析优选出最适合的PoW+POS方案,考虑到各方利益,并且防止分叉。
PoW工作量证明
比特币是采用PoW方案最典型的例子。它通过挖掘过程包括解决一个数学难题,矿工通过这种技术手段完成了工作量证明,取得记账权,可以将一系列的交易数据添加到区块链上。因为它需要占用算力的资源,成功的矿工会得到一定量的比特币作为奖励。随着算力不断增加,PoW通过难度调整保障出块时间大致相同,控制货币基数。
同时,PoW面临着参与成本高的问题。一个新参与数字货币的投资者,很少会有精力对矿机等进行管理与布局,这样大多数用户与持币者无法参与到决策中去,未能参与到社区发展之中。
PoS权益证明
PoS机制,更像是获取利息,能够让用户广泛参与到“挖矿”中来,大户拥有大量的币,获取更多的分红。而小户因为币少,甚至连开着客户端都是亏本的策略。所以更多的散户会倾向于不参与其中。于是,大户的筹码越来越多,PoS机制更容易导致数字货币的过于集中化,使富者愈富。
总所周知,以太坊从PoS到PoW+PoS,以太坊创始人Vitalik认为:这样的共识方式更安全,最为一款好的区块链应用,首先要解决协调方面的问题,不同公司之间的协调,不同实体以及机构之间跨越疆界,以互信的方式进行充分互动,同时不能造成垄断的问题。
从某一方面讲,PoW+PoS的这种制衡关系,阻碍了垄断的形成。以太坊在17年5月初公布了一份计划实施指南,指出以太坊将首先以一种「混合」系统——混合了比特币式的工作量证明(PoW)挖矿和权益证明(PoS)系统。
而最初以太坊曾考虑将PoW机制直接转换成PoS机制。为什么会做出这样的转变?Vitalik Burterin的回答很直接:
从PoW机制转变到PoW+PoS交易混合机制,这样做的转变很小,能够更快捷,更安全,相比较而言对用户更有利。因为我们要避免机制转变带来的危险性,等到整个系统更安全以后,才能进行更大的投入。
PoW + PoS混合共识
Bitvote采用了PoW+PoS共识机制,Bitvote的用户与矿工均可以参与到投票中,共同参与社区的重大决定,持币者与矿工都可以影响预先编制好的更新,如隔离见证(SegWit)、增大区块等等。如果这些更新被广泛认可,无需开发者干预,链就会自动分叉以配合更新。而这才是真正的去中心化。
Bitvote采用了PoW+PoS的混合共识机制,能够将受众群体最大化。
采用混合共识机制,通过PoW,Bitvote有挖矿的成本作为币价的保证。矿工几乎不会低于成本价出售数字货币的,同时制约了单独PoS机制里数字货币过于集中的问题。
另一方面,PoS让中小投资者着眼于项目的中长期的发展,中小户更倾向于把币放在钱包里进行PoS而不是放在交易所随时准备交易,从而使得Bitvote生态更加健康。
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Re: Bitvote混合共识,打破垄断,防止分叉
January 29, 2018, 09:27:49 AM
#2
ICO 骗局
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